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instance method

String#hex

str.hex → integer

static VALUE
rb_str_hex(VALUE str)
{
    return rb_str_to_inum(str, 16, FALSE);
}

Treats leading characters from str as a string of hexadecimal digits (with an optional sign and an optional 0x) and returns the corresponding number. Zero is returned on error.

Example

"0x0a".hex     #=> 10
"-1234".hex    #=> -4660
"0".hex        #=> 0
"wombat".hex   #=> 0

See also #hash #include? #gsub! #index also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.1

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